Method of making bottom cleats on stoves.



W. E. WOOD.

METHOD or MAKING BOTTOM GLEATS ON STOVES.

APPLICATION FILED JUNE 23, 1908.

910,254. Patented Jan. 19, 1909.

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WASHINGTON E. WOOD, OF PEEKSKILL, NEW YORK.

METHOD OF MAKING BGTTGM CLEATS ON STOVES.

Specification of Letters Patent.

Patented Jan. 19, 1909.

Application filed June 23, 1908. Serial No. 139,917.

To all! whom it may concern:

Be known that LlVASHINGTON E. W oon, a citizen of the United States, and resident of Peekskill, in the county of lVestchester and State of New York, have invented a certain new and useful Method of Making Bottom Cleats on Stoves, of which the following is a specification.

This invention relates to the cleats on stove bases for the attachment of stove legs; and its object is an improvement in the manner of casting the cleats. The object is attained by the means set forth in these specifications and the accompanying drawings, which together constitute a clear, exact, and full description of my invention.

Referring to the drawings, in which like letters and numerals refer to similar parts throughout the several views, Figure 1 is a perspective view showing the corner of a stove plate with the cleats. Fig. 2 is a plan showing the areparation of the )attern for molding by my method. Fig. 3 is an end view of a chill in place on the pattern. Fig. l is an end elevation of the chill. Fig. 5 is an end elevation and partly a transverse section of the chill. Fig. 6 is an end elevation of the chill with a detail to be explained. Fig. 7 is a bottom View of the chill. Fig. 8 shows the chill in'a mold. Figs. 1 and 2 are of natural size, and the other figures are views on an enlarged scale.

To produce a dovetail between the side cleats 1, Fig. 1, as shown, for holding the stove leg 2, indicated by broken lines, sheet tin forms are now almost universally used. Aside from their being expensive in the aggregate, they are more or less troublesome in handling and sometimes uncertain in the mold. The method here shown of using a chill renders a failure of results almost impossible. The chills are convenient and may be used repeatedly.

Fig. 2, at o b b b, is shown how the cleats are prepared on the pattern a, and end elevations of the cleats are shown in Figs. 3 5 6 8. Each side cleat is separated in two parts. A chill c, Fig. 2, is adapted to be placed on the cleats, the chill consisting of two elongated parts m n with a rib i connecting them, the rib i lying in and conforming to the space between the cleats.

An end view of the chill is shown in Fig. i, and a view of its under side is given in Fig. 7 The inner side of the part m lies upon the outer sloping sides of the cleats as in Figs. 2 3 5 and 6, and the bottom point 0 of the inner face of the part it touches the base of the inner sides of the cleats, as in Figs. 3 5 and 6. lVhen the chill is in place the outer faces of the parts at a form dovetailing angles with the plate a of the pattern, as in Figs. 8 5 6 and S.

The part a of the chill is recessed at Z Z, Fig. 7, on the inner face, and as shown in transverse section in Fig. 5, the section being taken through line 3 of Fig. 2. These recesses make a space Z, Fig. 5, and as indicated by broken lines in Figs. 3 and 6, when the chill is placed on the pattern. It will be plain that the chill can be easily lifted from the pattern.

In molding the pattern the chills are placed on each pair of cleats, as at c, Fig. 2, and the sand is rammed upon them. ig. 8 shows how the chill becomes embedded in the sand .9 and becomes a part of the mold, the recess Z, shown in Fig. 5, becoming a part, the dovetailing part Z, of the space I) that is formed by the pattern Z). The quantity of metal in the cleat is sufficient to allow the molten iron to entirely fill the space within the chill, resulting in a clean and sharp casting. Then the casting is dumped from the flask in which it was cast, the chills separate from the casting, and are easily gathered from the sand. The chills can used over and over again indefinitely, and their first cost is small.

It will be observed that in Fig. 3 the inner face of the part a of the chill is throughout parallel with the face of the cleat to which it is contiguous. The end of the chill may be made to overlap the end of the cleat as at 1', Fig. 6.

It is plain that the chill might be made to cover the whole of the cleats on the pattern, and the entire cleat be made in the chill. But I find an advantage in limiting the space to be chilled, so that allowance is made for the bulk of the cleats being formed in the sand. The part we of the chill is made only large enough to give a good firm hold of the chill on the pattern, that there may be no possibility of its displacement. With the limited area of molten metal that engages with the chill no trouble is encountered from the blowing of castings or of their running short by premature chilling.

It is common to speak of that part of the cleat that is formed in these chills as the dovetailing overhand. As these chills are susceptible to variations from the exact shapes herein shown without departure from the spirit of the invention I claim the right to such variations.

Having described my invention, what I claim and desire to secure by Letters Patent, is

In a means for casting bottom cleats on stoves, the combination of the cleats on the pattern formed in two parts, and a chill composed of two elongated parts united centrally by a rib, the rib conforming to the space between the parts of the oleat, one of the elongated parts adapted to fit on the back slope of the cleat-parts without covering said back slope, and the other elongated part adapted to fit against the inner faces of the cleat-parts and recessed to form the dovetail of the cleats, the chill having the greater part of the cleat-parts uncovered to the sand.

Signed in the county of Westchester and State of New York this 28th day of May A. D. 1908.

WASHINGTON E. VOOD.

WVitnesses:

GEORGE Poonrs, CHAS. V. OLDFIELD. 

